Specification of Sodium Sulphate Anhydrous
Item
|
Standard
|
||||
***钠
(Na2SO4)%≥
|
99.3
|
99.0
|
98.0
|
97.0
|
95.0
|
水不溶物
Water Insoluble Matters%≤
|
0.05
|
0.05
|
0.10
|
0.20
|
-
|
钙镁
(以Mg计) %≤
|
0.10
|
0.15
|
0.30
|
0.40
|
0.60
|
氯化物(以CI计)
Chloride %≤
|
0.12
|
0.35
|
0.70
|
0.90
|
2.0
|
铁(以Fe计)
Fe %≤
|
0.002
|
0.002
|
0.010
|
0.040
|
-
|
水分
Water %≤
|
0.10
|
0.20
|
0.50
|
1.0
|
1.5
|
白度(R457)
Whiteness %≥
|
85
|
82
|
82
|
-
|
-
|